Pin hole light means dick. As a matter of fact, unless it is comparable to a grow light intensity for over 30 minutes, all you will do is retard the finish time. Imagine extraneous light that the plant naturally experiences, it will not affect the grow. Imagine re-veg, it does not create hermies. That any light at all that reaches the plant stuff is bullshit. You open the flap for a minute, it will not affect anything. Been there, done that, and a very small light leak means nothing.
As far as a seed occurring on female that hasn't been pollinated, it happens believe it or not, with no dire consequences except your customer might bitch about that one seed he found, and I say in that instance, give it back and I'll give you your money back, and it never happens.A true hermie will have the pollen sacks and seeds, and a lot of them, not 2 or 3.. Then your fucked, as least for sale of the product. The flowers will still smoke OK. Absolut darkness is bullshit, at least that is what I have found to be the case. the plants have to be in dark for 1/2 the day, but it does not have to be pitch black all that time, that is unnatural.